Mats Forsberg / Ringed seal pup suckling {Phoca hispida} Svalbard, Norway

Mats Forsberg / Polar Bear tracks in snow, Svalbard , Norway

Mats Forsberg / Snow covered mountain range Svalbard, Spitzbergen, Norway, Scandinavia, Europe

Mats Forsberg / Polar bear stalking ringed seal pup. Svalbard, Norway.

Mats Forsberg / Ringed seal {Phoca hispida} pup on ice, Svalbard, Norway

Mats Forsberg / BBC NHU film crew travelling by snow mobile in search of Polar bears, on location for 'Blue planet', Svalbard, Norway, April 1996

Mats Forsberg / Film crew at the Texas bar hut, Svalbard, Norway, on location for BBC NHU 'Blue Planet' April 1997

Mats Forsberg / Martin Saunders filming Polar bears feeding, Svalbard, Norway, on location for BBC NHU 'Blue Planet' April 1996

Mats Forsberg / Doug Allan in Kvalvagon hut on location for BBC 'Kingdom of the Ice Bear', April 1996, Svalbard, Norway

Mats Forsberg / 'Texas bar hut' used by film crew on location for BBC 'Kingdom of the Ice Bear', April 1996, Leifdefj, Svalbard, Norway

Mats Forsberg / Cameraman Martin Saunders filming at ice hole for BBC 'Kingdom of the Ice Bear', April 1996, Leifdefj, Svalbard, Norway

Mats Forsberg / Film crew for BBC 'Kingdom of the Ice Bear' on their way to Leifdefj, Svalbard, Norway, April 1996

Mats Forsberg / Snow stained with blood from kill of a Polar Bear, Svalbard, Noway

Mats Forsberg / Two Polar Bears crossing landscape {Ursus maritimus} Svalbard, Norway

Mats Forsberg / Weddell seal on ice, Antarctica

Mats Forsberg / Polar bear (Ursus maritimus) walking along frozen coastline, Leifdefjorden, Svalbard, Norway

Mats Forsberg / Aerial looking down onto glacial front, Svalbard, Spitzbergen, Norway

Mats Forsberg / Leopard seal hauled out on ice floe (Hydrurga leptonyx) Antarctica.

Mats Forsberg / Leopard seal (Hydrurga leptonyx) hauled out on ice. Antarctic

Mats Forsberg / Crabeater seal on ice floe. (Loboden carcinophagus)Antarctic

Mats Forsberg / Iceberg formation in Svalbard, Leifdefi, Norway, Sandinavia

Mats Forsberg / Polar bear female walking with cubs following, Svalbard, Norway.

Mats Forsberg / Camerman Martin Saunders, looking out of the Texas Bar hut, home for film crew on location for Polar Bear programme, Svalbard, Norway. 1996

Mats Forsberg / Producer Martha Holmes and cameraman Martin Saunders inside Texas Bar hut, Svalbard, Norway, on location for Polar Bear film special, 1996

Mats Forsberg / Polar bear portrait (Ursus maritimus) Svalbard Norway

Mats Forsberg / Ringed seal (Phoca hispida) with suckling pup, Svalbard, Norway

Mats Forsberg / Ringed seal {Phoca hispida} pup on ice, Leifdefj, Svalbard, Norway

Mats Forsberg / Ringed seal (Phoca hispida) adult and pup on sea ice near icehole, Svalbard, Norway.

Mats Forsberg / Martin Saunders on location filming Polar bears for BBC programme "Polar Bear Special", Svalbard, Norway 1996

Mats Forsberg / Ringed seal (Phoca hispida) pup on ice, Svalbard, Norway